When analyzing the Fingerprint Secure Portable Hard Drive, Matthias Deeg found out that the validation of the firmware for the USB-to-SATA bridge controller INIC-3637EN only consists of a simple CRC-16 check (XMODEM CRC-16). Thus, an attacker is able to store malicious firmware code for the INIC-3637EN with a correct checksum on the used SPI flash memory chip (XT25F01B), which then gets successfully executed by the USB-to-SATA bridge controller. Continue reading...
